Over 40 Years in BusinessISO 27001 compliantPublic sector: GSA contract holder
LA 562-298-5000 · Chicagoland 312-432-5300 · Phoenix 602-733-6807 · Client Support
Over 40 Years in BusinessISO 27001 compliantPublic sector: GSA contract holder
LA 562-298-5000 · Chicagoland 312-432-5300 · Phoenix 602-733-6807 · Client Support
Managed detection and response, email security, MFA, patching, backups and testing for DuPage County businesses that need to stop ransomware, pass customer audits and answer cyber insurance questionnaires. Start with a free consultation and a free pen test.
BTI Communications Group, LTD. provides managed cybersecurity to DuPage County businesses from its Chicagoland office in Downers Grove, and has been in business for over 40 years. Our 24/7 NOC/SOC runs detection and response, email security, identity protection, patching and backups, and penetration testing is run with our independent testing partner. Call 312-492-2613 or request a free consultation and pen test.
On this page: Free pen testLocal threatsSecurity layersCompliance and insuranceGetting startedCities servedFAQ
A BTI engineer reviews your risks, compliance needs and insurance requirements with you. Then we run a credential-free Level 1 penetration test of 3 to 5 machines you choose, with our independent testing partner.
Attackers target firms that hold client data or cannot stop production: accounting and law firms, insurers, manufacturers and medical groups. Detection and tested backups decide whether an attack is an incident or a shutdown.
Fake invoices and wire change requests hit finance teams and real estate, title and property management offices. Email filtering, MFA and staff training stop most of them.
Manufacturers, distributors and suppliers to defense, automotive and medical customers are asked to prove controls before they win or keep contracts. CMMC and other compliance work is completed and contracted by BTI and its partners, including top industry professionals in each category.
Carriers ask about MFA, endpoint detection and response, backups and training before they renew. Gaps mean higher premiums or exclusions.
Laptops leave the office every day. Device management, identity protection and secure access keep company data safe off the network.
Cameras, door controllers and other IoT devices are often the least protected computers a company owns. See IoT security.
| Layer | What it does | Learn more |
|---|---|---|
| Managed detection and response | Watches endpoints and cloud accounts around the clock and isolates threats. | MDR |
| Managed SIEM | Collects and correlates logs for detection and audit evidence. | Managed SIEM |
| Email security and training | Filters phishing and trains staff with simulated attacks. | Email security and awareness training |
| Identity and device security | MFA, conditional access and device management. | Identity and device security |
| Endpoint protection | Next generation antivirus and control of what runs on each device. | Endpoint protection |
| Network security | Firewalls, DNS filtering, network access control and SASE. | Network security |
| Patching and vulnerability management | Updates and scans tracked to closure, with vCISO oversight. | Patching and vulnerability management |
| Testing and evidence | Ongoing testing by an independent testing partner, with Cyber Liability Essentials and Cyber Watch plans. | Cyber Liability Essentials and Cyber Watch |
| vCISO and governance | Policies, risk reviews and board level reporting. | vCISO services |
Most DuPage County clients come to us with a deadline: an insurance renewal, a customer questionnaire or an audit. We map the controls you have against what is being asked and close the gaps in order.
See cyber insurance readiness and governance, risk and compliance. Our own practices follow ISO 27001 compliant governance, independently reviewed through the TAG ISO 27001 Compliance Program.
Use this list to check your own environment. Each unchecked item is a common way attacks succeed.
Not sure how many you can check? The free consultation and pen test answers that for you, or start with a cybersecurity assessment.
Testing frequency varies by client requirement and compliance scope. By default, BTI recommends monthly vulnerability scans and quarterly penetration tests. Financing at 3.99% is available for qualified buyers, subject to credit approval, for security hardware and projects.
Call your insurer first if you have cyber coverage, since many policies name the response firms you must use. We work alongside them.
Both plans give you ongoing testing by our independent testing partner and reports that show risk going down over time.
Cyber Liability Essentials covers the baseline many insurers ask about. Cyber Watch is our pen testing plan for organizations that want testing on a regular schedule. Your engineer recommends one after the free pen test.
Details: compare the plans.
Security tools fail when no one owns them. Because BTI also runs IT support, the same team that patches your servers responds to alerts and fixes what a test finds. Clients who want both use managed IT in DuPage County.
We also secure the cameras and door controllers we install, so building systems are not the weak link. See security cameras and access control in DuPage County.
Download the 2026 Executive Guide to Managed IT and Cybersecurity (PDF).
Security operations run around the clock from our 24/7 NOC/SOC. When a device has to be replaced or a site visited, engineers leave from our Downers Grove office. Every DuPage city we serve is within about 13 miles of the office in a straight line, so on site visits are a short drive, and remote support and our 24/7 NOC/SOC cover every site around the clock.
Within about 5 miles of 1441 Branding Ave. Same day visits are routine.
About 5 to 10 miles west. Corporate offices, research and technology firms, medical groups and light industrial buildings along I-88.
About 6 to 13 miles north. Distribution, manufacturing and office parks near I-290, I-355 and the airport.
Schaumburg, Arlington Heights and the rest of the northwest suburbs, and Aurora and the Fox Valley, are served from the same office through the BTI Chicago pages.
See all BTI services in the county on the BTI DuPage County hub, or cybersecurity in Chicago.
1441 Branding Ave, Suite 200
Downers Grove, IL 60515
IT sales: 312-492-2613
Main office: 312-432-5300
24/7 support: 800-HELP-BTI (800-435-7284)
Monday to Friday, 8:00 AM to 5:00 PM CT
BTI Communications Group, LTD. serves Chicago and the surrounding suburbs. Pick your area for local services.
Chicago and Chicagoland businesses.
Over 40 years of IT, security and communications work. Call 312-492-2613 or book a free consultation.
Get a free consultationEach industry faces different threats and rules. See how we approach yours.
BTI Communications Group, LTD. provides managed cybersecurity to DuPage County businesses from its Chicagoland office in Downers Grove, including MDR, email security, identity protection, patching, backups and penetration testing with an independent testing partner, run through our 24/7 NOC/SOC.
A working session with a BTI engineer on your risks and requirements, plus a credential-free Level 1 penetration test of 3 to 5 machines you choose, run with BTI's independent testing partner. You keep the report and the ranked roadmap. There is no cost and no obligation.
Yes. Our Chicagoland office is at 1441 Branding Ave, Suite 200, Downers Grove, IL 60515. Security monitoring is delivered by our 24/7 NOC/SOC, and engineers are a short drive from every DuPage city. Call 312-492-2613.
Testing frequency varies by client requirement and compliance scope. By default, BTI recommends monthly vulnerability scans and quarterly penetration tests as part of ongoing security monitoring.
Yes. We review what your carrier asks about MFA, endpoint detection and response, backups, training and incident response, show where you stand and close the gaps before renewal.
Yes. CMMC and other compliance work is completed and contracted by BTI and its partners, including top industry professionals in each category.
Most Illinois businesses need to consider the Personal Information Protection Act, which sets breach notification duties, and the Biometric Information Privacy Act if they collect fingerprints or face scans. Your legal counsel makes the final call, and customer contracts and industry rules may add more.
Managed detection and response watches endpoints and cloud accounts around the clock, investigates suspicious activity and isolates threats before they spread.
Yes. We can run security alongside your current IT provider or internal team, with clear ownership of each tool.
BTI follows ISO 27001 compliant governance, independently reviewed through the TAG ISO 27001 Compliance Program.
Disconnect affected devices from the network without turning them off, call your cyber insurer if you have coverage, and call your security provider. Do not pay a ransom or wipe systems before evidence is preserved.
Check for MFA everywhere, endpoint detection and response, filtered email, tested offline or immutable backups, regular patching and a written incident plan. The free consultation and pen test shows where the gaps are.
Book a free consultation and pen test. You keep the ranked findings and the roadmap.